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Tier1 KDF85-20BB Water Filter

The Tier1 KDF85-20BB-WF filter cartridge contains KDF-85. This filter reduces chlorine taste and odor, water-soluble heavy metals, and controls scale, bacteria, and algae in your water. KDF is a patented medium that consists of high purity copper-zinc granules that use redox (exchange of electrons) to effectively reduce chlorine and heavy metals as well as controlling microorganisms in potable water. The Tier1 KDF85-20BB-WF Water Filter is 20-inch L x 4.5-inch W. The filter can be used in all number 20 Big Blue or number 20 Big Boy housings.